Research Article

Association of Iris Structural Measurements with Corneal Biomechanics in Myopic Eyes

Table 2

Corneal biomechanical parameters measured by the Dynamic Scheimpflug Analyzer ().

ParametersMean (SD)

DA max (mm)1.05 (0.09)
A1 time (ms)7.44 (0.24)
A1 velocity (ms)0.15 (0.02)
A2 time (ms)22.00 (0.36)
A2 velocity (ms)-0.27 (0.02)
HC time (ms)16.66 (0.44)
PD (mm)4.98 (0.23)
Radius (mm)6.72 (0.66)
A1 DA (mm)0.15 (0.01)
HC DA (mm)1.05 (0.09)
A2 DA (mm)0.32 (0.06)
A1 DLL (mm)2.22 (0.23)
HC DLL (mm)6.32 (0.78)
A2 DLL (mm)2.89 (0.63)
A1 DLA (mm)0.09 (0.01)
HC DLA (mm)0.92 (0.09)
A2 DLA (mm)0.10 (0.01)
DLA max (mm)0.93 (0.09)
A1 dArcL (mm)-0.02 (0.00)
HC dArcL (mm)-0.13 (0.02)
A2 dArcL (mm)-0.02 (0.01)
dArcLM (mm)-0.15 (0.03)
Max inverse radius (mm-1)0.18 (0.02)
DA ratio max (2 mm)4.28 (0.34)
DA ratio max (1 mm)1.56 (0.04)
Integrated radius (mm-1)9.00 (0.90)
SP-A1106.23 (17.83)

DA: deformation amplitude; A1: the first applanation; A2: the second applanation; HC: highest concavity; PD: peak distance; DLL: deflection length; DLA: deflection amplitude; dArcL: delta arc length; dArcLM: delta arc length max; SP-A1: stiffness parameter at the first applanation.